That could be the answer since, I recently got this device. So a lot of software had to be reinstalled. But that's not what I'm worrying about. I worry about windows defender not detecting it. And it's not that I got infected and the very moment I noticed it. I think I was infected for more then 10 days. There was no way of knowing, until I tried to make a transaction and made this discovery. That's what I don't like about it. This sly virus, not showing up anywhere until someone tried something related to crypto.
Have you checked on any of your recent programs that you've downloaded? There's a possibility that the reason why the Windows Defender didn't detect this is probably because it's a Trojan and an advance one at that as Windows Defender is already a good antivirus program so you can probably check on the previous downloads that you've done. Is this virus only a thing for computers? Or is it on mobile too? It's a scary thing for me because I'm not really checking too much on which address I would send my bitcoin so I'm a likely victim to this, good thing I don't do a lot of transactions.